Cubecell, mikrotik and chipstack

[shady79]

Hi everyone

I started communication between cubecell and the chirpstack server. The gateway is Mikrotik Lora8. I have a few questions in this regard.

1. On the mikrotik side I have the following messages:
   https://prnt.sc/w2jkz7

2. On the chirpstack side I get something like this:
   

   

Something’s wrong?

3. This is the code fragment that executes the sent data:

/* Prepares the payload of the frame */
static void prepareTxFrame( uint8_t port )
{
appDataSize = 2;
appData[0] = 1234;
appData[1] = 5678;
}

			prepareTxFrame( appPort );
			LoRaWAN.send();
			deviceState = DEVICE_STATE_CYCLE;

4. Where can I see this data (1234, 5678) in the frame?
   https://prnt.sc/w2jln6

Sorry for these trivial questions, but I’m just getting started with Lora.

Regards.
JN

[John_Roesler]

Hi @shady79

@shady79

2. On the chirpstack side I get something like this:
   
   

Looks like you’re watching the LoRaWAN Frames tab. You’ll want to look at the Device Data tab. Within the up packet, you’ll be able to see your data as a base64 encoded hex array. You can decode it with https://cryptii.com/. This thread should help! Decoding data from device - #5 by Morbog

[shady79]

This is my data?

Screenshot

[John_Roesler]

@shady79

This is my data?
Screenshot by Lightshot

Yes - that is your data

[shady79]

OK that’s true, my data has come:)

appDataSize = 3;
appData[0] = 1;
appData[1] = 2;
appData[2] = 88;

I would now like to make them available in decoded form for visualization, how to do it?
For example, send them with ModbusTCP or save them to the mysql database.

[John_Roesler]

There are some options here:

• you could use the built-in codec options to write something to decode that data
• you could use one of the integrations and write your own app to process the data and decode it

[Morbog]

I went down the Node-Red road. Node Red is listening to the MQTT server and picking up data from the chirpStack and I decode and process them further there. From there it is easy to make a dashboard, write data to MySQL or do other stuff with your data.

[shady79]

I’m currently testing a Python script that is listening on HTTP post request from server. I think it will be a sufficient solution for me.

[shady79]

Is this information about the battery charge correct, what is it taken from, since I have not implemented it in the code on the module side. I would like to save the battery charge state in the database together with the data coming from the module. Do I have to use the ADC in the module for this and send the reading along with the data?